Bakanov, V. V.; Vedernikov, D. N.; Kruchina-Bogdanov, I. V.; Eltsova, L. S. EXTRACTIVE SUBSTANCES OF SAPROTROPHIC MUSHROOMS: FLAMMULINA VELUTIPES, HYPHOLOMA CAPNOIDES, ARMILLARIA BOREALIS, ARMILLARIA CEPISTIPES. HEAVY METAL CONTENT. JCPRM 2022, 257-262.